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    Composite piston assembly for automotive air conditioning compressor
    421.
    发明授权
    Composite piston assembly for automotive air conditioning compressor 失效
    用于汽车空调压缩机的复合活塞组件

    公开(公告)号：US5022313A

    公开(公告)日：1991-06-11

    申请号：US461711

    申请日：1990-01-08

    Applicant: Kimball C. Shontz ,  Michael A. Gavlak ,  David M. Ebbing

    Inventor： Kimball C. Shontz ,  Michael A. Gavlak ,  David M. Ebbing

    IPC: B29C45/14 ,  F04B39/00 ,  F16J1/00 ,  F16J1/12

    CPC classification number: F16J1/12 ,  B29C45/14426 ,  F04B39/0005 ,  F16J1/008 ,  F05C2201/021 ,  F05C2201/0448 ,  F05C2253/04 ,  Y10T29/49261 ,  Y10T29/49945

    Abstract: A composite piston for an automotive air conditioning compressor is provided having an aluminum shank or piston rod, a reinforced plastic piston head and a steel ball for engaging a socket plate or the like. The shank has a distal end that has a slight reverse taper and a knurled surface for providing attachment to the plastic head that is molded thereon. The proximal end of the shank has a barrel to which the steel ball is press fitted. The shank is provided with a first collar adjacent the knurled distal end of the shank and a second collar adjacent to and intermediate the first collar and the proximal end of the shank. The first collar provides a seal for the mold cavity into which plastic is injected to form the piston head over the knurled surface of the shank. The second collar provides a support for the press fit operation of the steel ball onto the distal end of the shank.

    Abstract translation: 提供一种用于汽车空调压缩机的复合活塞，其具有铝柄或活塞杆，增强塑料活塞头和用于接合插座板等的钢球。 柄具有一个具有稍微反向锥形的远端和一个滚花表面，用于提供与模制在其上的塑料头的连接。 柄的近端具有一个筒体，钢球被压配合到其上。 柄设置有邻近柄部的滚花末端的第一颈圈和邻近第一颈圈和小腿的近端的第二颈圈。 第一套环为模腔提供密封，塑料注入塑料腔中，以形成在柄的滚花表面上的活塞头。 第二套环为钢球的压头配合操作提供了一个支撑，该支撑用于钢球的远端。

    Pistons for internal combustion engines
    424.
    发明授权
    Pistons for internal combustion engines 失效
    内燃机活塞

    公开(公告)号：US4989559A

    公开(公告)日：1991-02-05

    申请号：US417073

    申请日：1989-10-04

    Applicant: David F. Fletcher-Jones

    Inventor： David F. Fletcher-Jones

    IPC: F02F3/00

    CPC classification number: F02F3/0076 ,  F02B2275/14 ,  F02F2200/06 ,  F05C2201/021 ,  F05C2201/0448

    Abstract: Pistons are described comprising a crown having an associated piston ring groove belt and which crown is supported by gudgeon pin bosses connected thereto by two generally axially extending planar webs which are orientated transversely to the gudgeon pin axis and also supported by at least one subsidiary support rib associated with each planar web and pin boss and which support rib extends in a generally axial direction between the crown underside and pin boss and generally transversely to the planar web. The piston may be of either articulated or monometal construction.

    Curved supporting elements for joining piston pin bosses to piston head of internal combustion engine piston
    425.
    发明授权
    Curved supporting elements for joining piston pin bosses to piston head of internal combustion engine piston 失效
    用于将活塞销凸起连接到内燃机活塞的活塞头的弯曲支撑元件

    公开(公告)号：US4909132A

    公开(公告)日：1990-03-20

    申请号：US231683

    申请日：1988-08-12

    Applicant: Wolfgang Kling ,  Ernst Gschweitl

    Inventor： Wolfgang Kling ,  Ernst Gschweitl

    IPC: F02F3/00 ,  F02F3/02

    CPC classification number: F02F3/0069 ,  F02F3/02 ,  F05C2201/021 ,  F05C2201/0448

    Abstract: In order to achieve less deformation under gas pressure load and also under thermal load, the bottom piece of a piston with ring-carrying barrel is configured as a supporting cone tapering towards the piston pin and connected with the piston pin bosses by means of supporting elements. Cone, bosses and supporting elements are made in one piece. The supporting elements comprise walls extending essentially parallel to the axis of the piston pin. First distance (A) to the outer perimeter of the piston in the direction of the piston pin axis (Y--Y) are greater than the corresponding second distances (B) normal to this axis. The end parts of the walls are curved inwardly and leave open an area around an axis (X--X) normal to the piston pin axis.

    Abstract translation: 为了在气压负荷和热负荷下实现较小的变形，具有环形承载筒的活塞的底部件被构造成朝向活塞销逐渐变细的支撑锥，并通过支撑元件与活塞销凸起连接 。 圆锥，凸起和支撑元素是一体制成的。 支撑元件包括基本上平行于活塞销的轴线延伸的壁。 在活塞销轴线（Y-Y）方向上的活塞外周的第一距离（A）大于与该轴垂直的对应的第二距离（B）。 壁的端部向内弯曲并且围绕与活塞销轴线垂直的轴线（X-X）开放一个区域。

    Expansion-controlled light alloy piston
    427.
    发明授权
    Expansion-controlled light alloy piston 失效
    膨胀控制轻合金活塞

    公开(公告)号：US4887519A

    公开(公告)日：1989-12-19

    申请号：US841632

    申请日：1986-03-19

    Applicant: Werner Steidle

    Inventor： Werner Steidle

    IPC: F02F3/04

    CPC classification number: F02F3/042 ,  F05C2201/021 ,  F05C2201/0448

    Abstract: In expansion-controlled light alloy pistons for internal combustion engines, expansion control elements made of steel are bonded to the carrying portions of the cast skirt on the inside peripheral surface thereof and are embedded in the hubs of the piston pin bosses. To provide for an optimum expansion control action throughout the height of the piston skirt, the expansion control elements are provided on both sides of the plane of oscillation of the connecting rod with an aperture, which is open toward the end of the skirt and has a height amounting to at least 30% of the height of the expansion control elements. Said aperture has a peripheral dimension amounting to more than 10% of the piston diameter. Projections for supporting the expansion control element at its edges defining the aperture protrude into the latter.

    Abstract translation: 在用于内燃机的膨胀控制的轻合金活塞中，由钢制成的膨胀控制元件在其内周面上与铸造裙的承载部分接合，并嵌入活塞销凸台的毂中。 为了在活塞裙部的整个高度上提供最佳的膨胀控制动作，膨胀控制元件设置在连杆的摆动平面的两侧，孔的开口朝着裙部的端部敞开，并且具有 高度达到膨胀控制元件的高度的至少30％。 所述孔的周长尺寸大于活塞直径的10％以上。 用于支撑膨胀控制元件在其限定孔径的边缘处的突起突出到后者中。

    Ferrous sintered alloy vane and rotary compressor
    428.
    发明授权
    Ferrous sintered alloy vane and rotary compressor 失效
    铁质烧结合金叶片和旋转式压缩机

    公开(公告)号：US4859164A

    公开(公告)日：1989-08-22

    申请号：US125324

    申请日：1987-11-25

    Applicant: Soichi Shimomura

    Inventor： Soichi Shimomura

    IPC: B22F3/12 ,  B22F3/24 ,  B22F5/00 ,  C22C33/02 ,  F01C21/08

    CPC classification number: F01C21/0809 ,  B22F3/12 ,  B22F3/24 ,  C22C33/0285 ,  F04C2230/22 ,  F04C2230/40 ,  F05B2230/22 ,  F05B2230/40 ,  F05B2280/10 ,  F05C2201/0448 ,  Y10T29/49323

    Abstract: A vane used in a rotary compressor, and rotary compressor including the vane are made from a ferrous sintered alloy. The method comprises the steps of preparing metal powder mixture primarily containing iron, compacting the powder mixture to obtain a powder compact, sintering the powder compact to obtain a sintered body, subjecting sub-zero treatment to the sintered body, and tempering the sintered body. The sintered alloy product is used as a vane slidably disposed in a vane groove of the rotary compressor whose cooling medium is maintainable without deterioration of its property.

    Abstract translation: 用于旋转压缩机的叶片和包括叶片的旋转压缩机由铁质烧结合金制成。 该方法包括以下步骤：首先制备主要含铁的金属粉末混合物，压实粉末混合物以获得粉末压块，烧结粉末成型体以获得烧结体，对烧结体进行零下处理，回火烧结体。 烧结合金产品用作可滑动地设置在旋转压缩机的叶片槽中的叶片，其冷却介质可以在不降低其性能的情况下保持。

    Composite piston
    430.
    发明授权
    Composite piston 失效
    复合活塞

    公开(公告)号：US4736676A

    公开(公告)日：1988-04-12

    申请号：US890683

    申请日：1986-07-30

    Applicant: Allan H. Taylor

    Inventor： Allan H. Taylor

    IPC: F16J1/01 ,  B22D19/08 ,  B22D19/14 ,  F02B3/06 ,  F02F3/00 ,  F02F3/26 ,  F02F7/00 ,  F16J1/04

    CPC classification number: F02F7/0085 ,  F02F3/0015 ,  F02B3/06 ,  F05C2201/021 ,  F05C2201/0448 ,  F05C2203/0808 ,  F05C2251/042 ,  F05C2253/16

    Abstract: A composite piston structure is disclosed which provides a simple and reliable means for joining a carbon-carbon or ceramic piston cap 11 with a metallic piston body 13. Attachment is achieved by means of a special geometry which compensates for differences in thermal expansion without complicated mechanical fastening devices. The shape employs a flange created by opposed frustoconical shapes 12 and 19 with coincident vertices 15 intersecting on the radial centerline of the piston in order to retain the piston cap. The use of carbon-carbon for the piston cap material allows a close fit between the piston and a cylinder wall, eliminating the need for piston rings. The elimination of extra mechanical parts of previous composite pistons provides a lightweight composite piston capable of extended high temperature operation.

    Abstract translation: 公开了一种复合活塞结构，其提供用于将碳 - 碳或陶瓷活塞盖11与金属活塞体13接合的简单可靠的装置。借助特殊的几何形状来实现附接，其补偿热膨胀的差异而不需要复杂的机械 紧固装置。 该形状采用由相对的截头圆锥形状12和19产生的凸缘，其具有与活塞的径向中心线相交的重合顶点15，以便保持活塞盖。 使用碳碳作为活塞盖材料可以使活塞和气缸壁紧密配合，从而无需活塞环。 消除以前的复合活塞的额外机械部件提供了能够延长高温操作的轻质复合活塞。

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